- SASDD85: PDZK1 Domain 1-4 (Uncharacterized protein C1orf159) -
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基本情報
登録情報
データベース: SASBDB / ID: SASDD85
試料
PDZK1 Domain 1-4
Uncharacterized protein C1orf159 (protein), Homo sapiens
機能・相同性
Protein of unknown function DUF4501 / Domain of unknown function (DUF4501) / membrane => GO:0016020 / Uncharacterized protein C1orf159
機能・相同性情報
生物種
Homo sapiens (ヒト)
引用
ジャーナル: Structure / 年: 2018 タイトル: Probing the Architecture of a Multi-PDZ Domain Protein: Structure of PDZK1 in Solution. 著者: Nelly R Hajizadeh / Joanna Pieprzyk / Petr Skopintsev / Ali Flayhan / Dmitri I Svergun / Christian Löw / 要旨: The scaffolding protein PDZK1 has been associated with the regulation of membrane transporters. It contains four conserved PDZ domains, which typically recognize a 3-5-residue long motif at the C ...The scaffolding protein PDZK1 has been associated with the regulation of membrane transporters. It contains four conserved PDZ domains, which typically recognize a 3-5-residue long motif at the C terminus of the binding partner. The atomic structures of the individual domains are available but their spatial arrangement in the full-length context influencing the binding properties remained elusive. Here we report a systematic study of full-length PDZK1 and deletion constructs using small-angle X-ray scattering, complemented with biochemical and functional studies on PDZK1 binding to known membrane protein partners. A hybrid modeling approach utilizing multiple scattering datasets yielded a well-defined, extended, asymmetric L-shaped domain organization of PDZK1 in contrast to a flexible "beads-on-string" model predicted by bioinformatics analysis. The linker regions of PDZK1 appear to play a central role in the arrangement of the four domains underlying the importance of studying scaffolding proteins in their full-length context.